Influenza A is Influenza A. Children with Influenza A can spread it to adults through droplet transmission such as sneezing and coughing. Influenza A is a highly contagious flu caused by the influenza A virus. When a child has influenza A, he or she may have a high fever, headache, sneezing, and a runny nose. When a child sneezes or coughs, the influenza A virus may be sprayed out with droplets, and if the adults around them have weak resistance, they may become infected. When a child has influenza A, pay attention to rest, maintain a light diet, ensure adequate sleep, enhance the body’s immunity, promote the recovery of the body. Also pay attention to wearing a mask and covering the mouth and nose when coughing or sneezing to prevent infection to others. After the child suffers from influenza A, we should pay attention to close monitoring, if the high fever persists or other adverse reactions, it is recommended to go to the hospital in a timely manner, early formal treatment.